Pangasius refers mainly to a group of large river catfish from Southeast Asia (family Pangasiidae).
The two species most commonly encountered are:

✔️ Iridescent Shark (Pangasianodon hypophthalmus)

— The species most sold in pet stores
— Silvery, torpedo-shaped, schooling behavior
— Can reach 3–4 feet (90–120 cm) in adulthood

✔️ Pangasius Catfish / Panga

A general term used for edible pangasius species, including koi and basa types.

These fish are not sharks, but get their name from their body shape and swimming style.

🐡 Aquarium Care (Important!)

⚠️ Pangasius are NOT suitable for most home aquariums.

They grow very large, swim fast, and need huge open space.

Tank Requirements

• Minimum tank: 300–500+ gallons (for one adult)

• Temperature: 72–80°F (22–27°C)

• pH: 6.5–7.5

• Water flow: Moderate to strong

• Lighting: Low to moderate

They can injure themselves easily — they are nervous, skittish fish that dart when startled.

🍽️ Diet

Pangasius are omnivores:

• Pellets (large catfish pellets)

• Fish, prawns, insects

• Bloodworms

• Vegetables (spinach, peas)

• Commercial pangasius/catfish food

They grow very fast, especially when young.

🤝 Tankmates

Need large, peaceful tankmates that won’t fit in their mouth.

Good examples (in very large tanks only):

• Large barbs

• Large silver dollars

• Big plecos

• Other pangasius

Avoid:

• Small fish (will be eaten)

• Aggressive fish (can stress pangasius)

🧠 Behavior

• Schooling when young

• Nervous and easily spooked

• Powerful swimmers

• Can jump — strong lid required

• Sensitive to poor water quality

📝 Summary

Pangasius are beautiful, impressive catfish but not beginner-friendly and not suited to normal aquariums. They belong in huge tanks or public aquariums.